Why Did My Dog Vomit Foamy Yellow Liquid

Why Did My Dog Vomit Foamy Yellow Liquid

Sep 13, 2021
12 min

Why Is My Dog Throwing Up Yellow Foam?


Whilst there are numerous causes of vomiting generally, many clients report that their dog, over the years will sometimes vomit yellow fluid, often first thing in the morning.

In most cases, yellow foam indicates that the dog’s stomach is relatively empty of food at the time of vomiting and the condition is frequently referred to as Bilious Vomiting Syndrome (BVS). The yellow colour often comes from bile, a digestive fluid that’s produced in the liver, stored in the gall bladder and then released into the small intestine just below the stomach in the small intestine. The yellow foam your dog is throwing up is often that digestive fluid known as the bile. A dog may vomit simply because the stomach is empty and the bile is irritating.

If your dog is otherwise healthy, is eating and drinking normally and the vomiting is more of a chronic, recurring but non progressive intermittent phenomenon then it is very likely that the cause is indeed Bilious Vomiting Syndrome. Trying to minimize the amount of time the stomach is empty for can help to decrease the occurrence of vomiting episodes and this can be achieved by splitting their evening feed into 2 meals – 1 at normal dinner time and 1 just before bed.

BVS is what we refer to as an exclusion diagnosis. There is no definitive test to diagnose it, but it is left as the likely conclusion if we rule out all other causes of vomiting. Other causes of vomiting, as you might expect, are varied. By far the most common cause seen in day to day general veterinary practice is dietary indiscretion i.e. a dog has eaten something rotten or that doesn’t agree with them, much in the same way we might suffer from food poisoning.

Other causes include blockages and problems with organ systems such as kidney and liver failure. The vast majority of vomiting cases that are not BVS or dietary indiscretion can be diagnosed by a combination of blood tests and diagnostic imaging, such as X-rays and Ultrasound.

What does it mean when your dog throws up yellow liquid

1. Your dog has eaten grass

This can be the most probable reason why your dog is throwing up yellow foam. He cannot digest grass and eats it because he wants to vomit. Read more: Why Is My Dog Always Eating Grass?

2. Done extensive exercise

Exercise is good for your dog, but eating or drinking after strenuous exercise is bad. Be sure to limit his water intake and don’t offer him anything to eat until your dog has cooled down completely make sure there is a time interval of at least half an hour after the exercise.

3. Eaten Rotten Food

Due to their highly developed sense of smell, you will often see your dog rummaging through garbage to look for something special. While doing it, they may even eat rotten food from the garbage bin, which will induce vomiting. Make sure to cover your garbage bin with a lid to ensure your dog doesn’t end up eating something harmful. This may also lead to some serious problem thereafter so please try to avoid it.

4. Experiencing Motion Sickness

Some dogs may vomit while they are travelling. They may throw up stuff that looks pale white or yellow. You may consider giving some medicines before travelling.

5. Heatstroke

If your dog is throwing up in hot weather, it may mean he’s suffering from heatstroke. Some of the most common symptoms of heatstroke are vomiting, elevated body temperature, and seizures. Don’t leave your dog in a parked car. If you notice signs of heatstroke, use cool compresses and seek medical attention if symptoms persist.

What can I give my dog for throwing up bile?

1. Feed them more frequently

A simple way to resolve the issue is to feed your dog more often. Just divide their regular meal into three smaller meals and feed them more frequently. Generally, this is most helpful.

2. Products gentle on the tummy:

Give them Zantac, Pepcid ac, or Tagamet

All these medications will regulate the production of stomach acids and bile that will alleviate stomach problems. Be sure to talk to your veterinarian before giving any of these medications to your dog.

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3. Give them hydrated kibble or wet food

Giving dry, dehydrated kibble to dogs can cause an upset stomach because it can absorb fluids in the stomach. The best thing is to add some warm water to the dog food so it could absorb water and expand before your dog eats it.

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What to Do If Your Dog Throws Up Yellow Foam

4. Make their meals stress-free

Select a quiet, stress-free location to feed your dog. If you cannot provide your dog with a stress-free location, it will increase the chances of developing several stomach problems. It may also make existing problems worse. Make sure you are not around and there is no other pet close to your dog during his mealtime.

5. Don’t make them work immediately after eating

If you take your dog for a walk immediately after eating, it will lead to an upset stomach. Limit your dog’s activity after he eats, especially if he is already throwing yellow foam. You should wait for at least a couple of hours following a meal to play with your dog or take him out for a walk to prevent vomiting.

Should I feed my dog after vomiting yellow bile?

If your dog is able to stomach it, you may food your dog. Take note that he or she may not want to eat immediately after vomiting. It may help to offer some bland food instead of strong-smelling food.